(Hong Kong)
Product Summary
The MAX3483, MAX3485, MAX3486, MAX3488, MAX3490, and MAX3491 are 3.3V, low-power transceivers for RS-485 and RS-422 communication. Each part contains one driver and one receiver. The MAX3483 and MAX3488 feature slew-rate-limited drivers that minimize EMI and reduce reflections caused by improperly terminated cables, allowing error-free data transmission at data rates up to 250kbps. The partially slew-rate-limited MAX3486 transmits up to 2.5Mbps. The MAX3485, MAX3490, and MAX3491 transmit at up to 10Mbps.
Drivers are short-circuit current limited and are protected against excessive power dissipation by thermal shutdown circuitry that places the driver outputs into a high-impedance state. The receiver input has a fail-safe feature that guarantees a logic-high output if both inputs are open circuit.
The MAX3488, MAX3490, and MAX3491 feature full-duplex communication, while the MAX3483, MAX3485, and MAX3486 are designed for half-duplex communication.
Parametrics
| Type | Transceiver |
|---|---|
| Protocol | RS422, RS485 |
| Number of Drivers/Receivers | 1/1 |
| Duplex | Half |
| Receiver Hysteresis | 50mV |
| Data Rate | 10Mbps |
| Voltage - Supply | 3 V ~ 3.6 V |
| Operating Temperature | 0°C ~ 70°C |
| Mounting Type | Surface Mount |
| Package / Case | 8-SOIC (0.154", 3.90mm Width) |
| Supplier Device Package | 8-SOIC N |
Features
Operate from a Single 3.3V Supply-No Charge Pump!
Interoperable with +5V Logic
8ns Max Skew (MAX3485/MAX3490/MAX3491)
Slew-Rate Limited for Errorless Data Transmission (MAX3483/MAX3488)
2nA Low-Current Shutdown Mode (MAX3483/MAX3485/MAX3486/MAX3491)
-7V to +12V Common-Mode Input Voltage Range
Allows up to 32 Transceivers on the Bus
Full-Duplex and Half-Duplex Versions Available
Industry Standard 75176 Pinout (MAX3483/MAX3485/MAX3486)
Current-Limiting and Thermal Shutdown for Driver Overload Protection
Diagrams
| Image | Part No | Mfg | Description |  |
Pricing (USD) |
Quantity | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
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 MAX3485CSA |
Maxim Integrated Products |
RS-422/RS-485 Interface IC |
Data Sheet |
Negotiable |
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 |
MAX3485CSA+ |
Maxim Integrated Products |
RS-422/RS-485 Interface IC 3.3V 10Mbps Transceiver |
Data Sheet |
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MAX3485CSA+T |
Maxim Integrated Products |
RS-422/RS-485 Interface IC 3.3V 10Mbps Transceiver |
Data Sheet |
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|
MAX3485CSA-T |
Maxim Integrated Products |
RS-422/RS-485 Interface IC |
Data Sheet |
Negotiable |
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